This is more out of curiosity and for learning than worry, but some folks have told me that I should investigate this further. I get the warning
Note on orientation: qform matrix overwritten The qform has been copied from sform. in my
.html report files for a dataset. From the discussion here, it seems like this usually shouldn’t be an issue, and is simply a warning. Is this indeed the case?
My curiosity came from visual inspection of the input files for FMRIPREP with
fslhd, which yields that the qform and sform headers look exactly the same (at least to my human eyes, see below). What would yield this discrepancy? Is it decimal precision, or something? I see here that it’s probably due to
Used fmriprep 1.2.5.